undersongsp Posted August 26, 2016 Share Posted August 26, 2016 Hi, I'm from Brazil and here, we don't have many Technical Assistance for LINE 6, the most part of them, they just work on change simple parts, boards, dust cleaning etc.. They don't use to fix advanced problems, in these cases, they just tell the costumers: -Your equipment is permanently dead!! I have a TONE PORT UX8 and it stop to working. So I sent it to a Technical Assistence, but I'm affraid they take off some components.. I have some knowledge in Eletronic and could fix it myself, but I can't find any information about this equipment (Schematics diagrams etc..). I'd like to ask you all, about any information, main boards picture, tips, if there are components on the main boards positions: U13, 14, 15 and 16 and what's witch one.. U35 and 36.. Thank you all for any help!! Sorry for my BAD ENGLISH, I hope you can read well!! Quote Link to comment Share on other sites More sharing options...
psarkissian Posted August 26, 2016 Share Posted August 26, 2016 That's normal. Those spots are empty, nothing goes there. That's okay. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted August 26, 2016 Share Posted August 26, 2016 Are two LED's going back and forth? Are you using Gearbox? UX8 is the interface, Gearbox is the application to use, to run the UX8. Quote Link to comment Share on other sites More sharing options...
undersongsp Posted August 27, 2016 Author Share Posted August 27, 2016 That's normal. Those spots are empty, nothing goes there. That's okay. Thank you so much!! For now, this information is gonna be very usefull!! I'll keep looking for other technical information, because I really decide to repair it myself!! Thak you so much!! Quote Link to comment Share on other sites More sharing options...
undersongsp Posted August 27, 2016 Author Share Posted August 27, 2016 Are two LED's going back and forth? Are you using Gearbox? UX8 is the interface, Gearbox is the application to use, to run the UX8. No, man.. It's really dead.. Do nothing.. PC do not reconize it.. Power button make no changes, no LED's, no sounds IN or OUT.. The only thing I figure out is, when I conect my ear phone and turn up the volume, I can hear some white noise, even if the power button is off.. But, nothing more works.. I checked out all voltages in wich one check points and all of those are ok!! There is only one that came from an IC close to the Chopper, that is wrhit +48V, but I'm I get in digital Multimeter 4.8V.. I'm not shure if was a silkscreen error or tha's the "eye of the storm"?? kkkk.. Thank you man!!! Quote Link to comment Share on other sites More sharing options...
psarkissian Posted August 29, 2016 Share Posted August 29, 2016 Did you have a mic plugged in? What brand and model was it? Did you use the +48V phantom power for the mic? Quote Link to comment Share on other sites More sharing options...
undersongsp Posted August 30, 2016 Author Share Posted August 30, 2016 Did you have a mic plugged in? What brand and model was it? Did you use the +48V phantom power for the mic? Yes, I plugged 2 kind of MIC, both are working Ok.. (I have a MIXER and both working good). First one was a Simple Dynamic Leson SM58 without 48V, the second one, was a Condenser AudioTechnica Phantom Powered.. None of them make any diference.. The interface still dead.. No LED's, no V.U. activity, no USB detection, no sounds IN ou OUT.. That's all for the moment!! Thank you very much!! Quote Link to comment Share on other sites More sharing options...
psarkissian Posted August 30, 2016 Share Posted August 30, 2016 Then the 48V line may be okay, the power line to the processor may have failed, or the line coming from the supply out to the IC chips may have failed. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted August 30, 2016 Share Posted August 30, 2016 Is this the original main board, or has it been swapped out before? Quote Link to comment Share on other sites More sharing options...
psarkissian Posted August 30, 2016 Share Posted August 30, 2016 There is a Line 6 authorized service center Habro Comercio, Importacao, in Sao Paulo. They could do a thorough troubleshooting the problem. Quote Link to comment Share on other sites More sharing options...
undersongsp Posted August 31, 2016 Author Share Posted August 31, 2016 Then the 48V line may be okay, the power line to the processor may have failed, or the line coming from the supply out to the IC chips may have failed. I believe (I hope so) some other eletronic part from the power supply has damaged when there was a power cut.. I'm just looking for some other component that could be damaged.. I hope, the processor is fine!! Quote Link to comment Share on other sites More sharing options...
undersongsp Posted August 31, 2016 Author Share Posted August 31, 2016 Is this the original main board, or has it been swapped out before? It's the original main board. Thank you for your help!! Quote Link to comment Share on other sites More sharing options...
undersongsp Posted August 31, 2016 Author Share Posted August 31, 2016 There is a Line 6 authorized service center Habro Comercio, Importacao, in Sao Paulo. They could do a thorough troubleshooting the problem. I know!! I sent it to an autorized some time ago, but, unfortunatly, 10 months has passed and the only thing they said is they din't have the part available in Brazil. Another point is.. The most part of people in Brazil, don't trust in this kind of service, because they don't really care about fix and/or serv the client.. Most part of them, are just worry about profits doing the easiest job.. (Change boards, cleaning dust etc..).. Here in Brazil used to be very risky, to send any equipment to various service places.. When the client don't agree with them prices for exemple, they used to changed parts, sometimes take off some parts or even permanently damage.. If they do this, I'll never gonna know, but, I spent a lot of money to buy this interface and I refuse to lost it in this way!! I hope you understand!! And thank you for your help!! Quote Link to comment Share on other sites More sharing options...
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